Cyclic fatigue characteristics of rock failure using infrared radiation as precursor to violent failure: Experimental insights from loading and unloading response

Kewang Cao; Liqiang Ma; Yu Wu; Naseer Muhammad Khan; A.J.S.(Sam) Spearing; Sajjad Hussain; Jie Yang

doi:10.1111/ffe.13362

journal article Nov 16, 2020

Cyclic fatigue characteristics of rock failure using infrared radiation as precursor to violent failure: Experimental insights from loading and unloading response

Kewang Cao

Liqiang Ma Yu Wu

Naseer Muhammad Khan

A.J.S.(Sam) Spearing Sajjad Hussain

Jie Yang

Fatigue & Fracture of Engineering Materials & Structures Vol. 44 No. 2 pp. 584-594 · Wiley

View at Publisher Save 10.1111/ffe.13362

Abstract

AbstractIn this research paper, a new method is developed that can be used as a precursor of violent rock failure. It is based on measuring the characteristics of rock failure using infrared radiation (IR) under uniaxial cyclic loading and unloading. The loading–unloading response ratio (LURR) is determined based on IR indexes such as average infrared radiation temperature (AIRT) and infrared radiation temperature rate (IRTR). The results show that the LURR based on AIRT revealed an overall rising trend and mutation that occurred in the last cycle, which can be used as a precursor of the imminent rock failure. By contrast, the LURR based on IRTR has a noticeable ‘mutation‐rapid decrease’ in the middle and later periods of cyclic loading and unloading, which can also be considered as an early precursor of rock failure. Combined with the precursors of the imminent rock failure, the categorized warning of rock failure is recognized.

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References

Details

Published: Nov 16, 2020
Vol/Issue: 44(2)
Pages: 584-594
License: View

Authors

K

Kewang Cao

State Key Laboratory For Geomechanics and Deep Underground Engineering China University of Mining and Technology Xuzhou China; Key Laboratory of Deep Coal Resource Mining, Ministry of Education of China, School of Mines China University of Mining and Technology Xuzhou China

L

Liqiang Ma

Key Laboratory of Deep Coal Resource Mining, Ministry of Education of China, School of Mines China University of Mining and Technology Xuzhou China

Y

Yu Wu

State Key Laboratory For Geomechanics and Deep Underground Engineering China University of Mining and Technology Xuzhou China

N

Naseer Muhammad Khan

Key Laboratory of Deep Coal Resource Mining, Ministry of Education of China, School of Mines China University of Mining and Technology Xuzhou China; Department of Mining Engineering Balochistan University of Information Technology Engineering and Management Sciences Quetta Pakistan

A

A.J.S.(Sam) Spearing

Key Laboratory of Deep Coal Resource Mining, Ministry of Education of China, School of Mines China University of Mining and Technology Xuzhou China

S

Sajjad Hussain

Department of Mining Engineering University of Engineering and Technology Peshawar Pakistan

J

Jie Yang

Key Laboratory of Deep Coal Resource Mining, Ministry of Education of China, School of Mines China University of Mining and Technology Xuzhou China

Funding

National Natural Science Foundation of China Award: 51874280

Priority Academic Program Development of Jiangsu Higher Education Institutions

Cite This Article

Kewang Cao, Liqiang Ma, Yu Wu, et al. (2020). Cyclic fatigue characteristics of rock failure using infrared radiation as precursor to violent failure: Experimental insights from loading and unloading response. Fatigue & Fracture of Engineering Materials & Structures, 44(2), 584-594. https://doi.org/10.1111/ffe.13362

Cyclic fatigue characteristics of rock failure using infrared radiation as precursor to violent failure: Experimental insights from loading and unloading response

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